Closed Universe in Mirage Cosmology
Abstract
We study the cosmological evolution of the closed universe on a spherical probe brane moving in the AdSm× Sn background and the near-horizon background of the dilatonic D-branes. The Friedmann equations describing the evolution of the brane universe, and the effective energy density and pressure simulated on the probe brane due to its motion in the curved background spacetime are obtained and analyzed. We also comment on the relevance of the spherical probe brane to the giant graviton for the special value of the probe energy.
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